@inproceedings{whatsmissingaknowledgegapguidedapproach,
  title = {What's Missing: A Knowledge Gap Guided Approach for Multi-hop Question Answering},
  author = {Tushar Khot and Ashish Sabharwal and Peter Clark},
  year = {2019},
  booktitle = {IJCNLP 2019 11},
  eprint = {1909.09253},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1909.09253v1},
}